Formation of silver nanoparticles in formamide:water mixtures: a radiolytic study |
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Authors: | A. Sarkar T. Mukherjee S. Kapoor |
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Affiliation: | 1.Radiation and Photochemistry Division,Bhabha Atomic Research Centre,Trombay, Mumbai,India |
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Abstract: | The pulse radiolysis of FA and FA:water solutions was studied in the absence and presence of redox indicator 1,1′-dimethyl-4,4′-bipyridinium dichloride (methyl viologen, MV2+). The experiments performed in the presence of MV2+ have provided strong support to the idea that the first species obtained from the reaction of esol− and •OH with FA produces radicals that show reactivity towards the MV2+. Both the radicals on reaction with MV2+ results in the appearance of the well-known intense blue MV•+ radical absorption signal (λmax = 395 nm, λmax = 605 nm). The intermediate radicals formed during radiolysis were used to generate silver nanoparticles. |
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